Newton’s Forward and Backward Interpolation
gn.dronacharya.info › CSEDept › DownloadsNewton b ackward f ormula is : P (x) = y n +p y n + p(p+1) 2! 2 y n + p(p+1)(p+2) 3! 3 y n + p(p+1)(p+2)(p+3) 4! 4 y n + p(p+1)(p+2)(p+3)(p+4) 5! 5 y n P (42)=204+( - 0.6)( - 27)+ (-0.6)(0.4) 2 u2+ (-0.6)(0.40(1.4) 6 u0+ (-0.6)(0.4)(1.4)(2.4) 24 u 8 + (-0.6)(0.4)(1.4)(2.4)(3.4) 120 u 45 = 219.1430 Thus , f(42) = 219.143 ENGINEERING MATHEMATICS III